Plate Tectonics

Question 1

The outermost shell of a rocky planet.

Answer 1

Crust

Question 2

Layer of molten rock between the crust and core

Answer 2

Mantle

Question 3

Made up of mostly Iron. Separated into the outer core (molten) and inner core (solid)

Answer 3

Core

Question 4

The layer of rock that makes up the outer part of the Earth, including the crust and upper mantle (lithospheric plates)

Answer 4

Tectonic Plates

Question 5

The theory that continents gradually drifted over time to their present positions.

Answer 5

Continental Drift Theory

Question 6

A thin layer of Earth, about 150 miles thick, at the border between the mantle and the crust.

Answer 6

Asthenosphere

Question 7

A long ridge of underwater volcanoes between two diverging oceanic plates.

Answer 7

Mid-Ocean Ridge

Question 8

A long narrow valley between two diverging continental plates.

Answer 8

Rift Valley

Question 9

The process in which the hotter parts of a gas or liquid rise to the top and the cooler, denser parts sink.

Answer 9

Convection Current

Question 10

When two tectonic plates come together.

Answer 10

Convergent Boundary

Question 11

Uplift of crustal plates that form elevated landmasses.

Answer 11

Mountains

Question 12

A vent or fissure in Earth’s surface through which magma and gases are expelled.

Answer 12

Volcanoes

Question 13

When tectonic plates split apart.

Answer 13

Divergent Boundary

Question 14

When tectonic plates slide past each other.

Answer 14

Transform Boundary

Question 15

Breaks in the crust. The movement causes seismic waves which produces earthquakes.

Answer 15

Fault